Home / 345,902.13-477,272.03-210,007.53

Finding the Fourth Proportional to 345,902.13, 477,272.03 and 210,007.53

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Solution

The fourth proportional to 345,902.13, 477,272.03 and 210,007.53 is: 289,766.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,902.13 : 477,272.03 = 210,007.53 : x
  2. Step 2: Convert to fraction form
    345,902.13/477,272.03 = 210,007.53/x
  3. Step 3: Cross multiply
    345,902.13x = 477,272.03 × 210,007.53
  4. Step 4: Simplify right side
    345,902.13x = 100,230,719,108.35
  5. Step 5: Solve for x
    x = 100,230,719,108.35/345,902.13
  6. Step 6: Final answer
    x = 289,766.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.